{
    (isInput)(out)(output)(input)
        [isInput]
|
    isSysInput
}

{
    (isInput)(out)(output)(input)
        [out]
|
    outOf
}

{
    (isInput)(out)(output)(input)
        [output]
|
    outputOf
}

{
    (isInput)(out)(output)(input)
        [input]
|
    inputOf
}